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- Title
Probing the Atomic Structure of Californium by Resonance Ionization Spectroscopy.
- Authors
Weber, Felix; Düllmann, Christoph Emanuel; Gadelshin, Vadim; Kneip, Nina; Oberstedt, Stephan; Raeder, Sebastian; Runke, Jörg; Mokry, Christoph; Thörle-Pospiech, Petra; Studer, Dominik; Trautmann, Norbert; Wendt, Klaus
- Abstract
The atomic structure of californium is probed by two-step resonance ionization spectroscopy. Using samples with a total amount of about 2 × 10 10 Cf atoms (ca. 8.3 pg), ground-state transitions as well as transitions to high-lying Rydberg states and auto-ionizing states above the ionization potential are investigated and the lifetimes of various atomic levels are measured. These investigations lead to the identification of efficient ionization schemes, important for trace analysis and nuclear structure investigations. Most of the measurements are conducted on 250 Cf. In addition, the isotope shift of the isotopic chain 249 − 252 Cf is measured for one transition. The identification and analysis of Rydberg series enables the determination of the first ionization potential of californium to E IP = 50 , 666.76 (5) cm − 1 . This is about a factor of 20 more precise than the current literature value.
- Subjects
ATOMIC structure; RESONANCE ionization spectroscopy; CALIFORNIUM; RYDBERG states; ISOTOPE shift; IONIZATION energy
- Publication
Atoms (2218-2004), 2022, Vol 10, Issue 2, p51
- ISSN
2218-2004
- Publication type
Article
- DOI
10.3390/atoms10020051